EWB (Bikin birki na lantarki)
EWB fasaha ce daga Siemens VDO dangane da tunanin jirgin sama. Birki na lantarki gabaɗaya ya ketare tsarin na'ura mai ƙarfi da ƙarfi, a maimakon haka ana motsa shi ta hanyar injuna masu saurin tafiya da wutar lantarki mai ƙarfin volt 12 ke motsa abin hawa.
Kowane dabaran yana da nasa tsarin tare da naúrar sarrafawa. Lokacin da bugun birki ya yi rauni, ana kunna injin stepper, waɗanda ke danna farantin birki a kan faifan birki, suna motsi saman farantin. Yayin da farantin yana motsawa - ya karkata zuwa gefe, yawancin kushin birki yana danna kan faifan birki. Da sauri dabaran tana jujjuyawa, ƙarfin ƙarfin birki yana ƙaruwa. Don haka, EWB yana buƙatar ƙarancin ƙarfi fiye da tsarin injin da ake da shi. Hakanan wannan tsarin yana da saurin amsawa, yana aiki kusan kashi uku cikin sauri fiye da birki na al'ada, don haka yana ɗaukar 100ms kawai don wannan tsarin don isa cikakken ƙarfin birki idan aka kwatanta da 170ms don birki na hydraulic na al'ada.
